The-Homebrew-Cloud/cemu-idapython
2
0
Fork 0
mirror of https://github.com/cemu-project/idapython.git synced 2024-11-28 03:54:18 +01:00
Code Issues Packages Projects Releases Wiki Activity

idc.py: Implemented rotate_left()

Browse Source
This commit is contained in:
gergely.erdelyi 2008-06-15 12:09:46 +00:00
parent ae694a52ba
commit a979882e50
1 changed files with 22 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
python/idc.py
View File

@ -294,10 +294,29 @@ def rotate_left(value, count, nbits, offset):
@return: the value with the specified field rotated @return: the value with the specified field rotated
all other bits are not modified all other bits are not modified
FIXME: unimplemented
""" """
raise NotImplementedError assert offset >= 0, "offset must be >= 0"
assert nbits > 0, "nbits must be > 0"
mask = 2**(offset+nbits) - 2**offset
tmp = value & mask
if count > 0:
for x in xrange(count):
if (tmp >> (offset+nbits-1)) & 1:
tmp = (tmp << 1) | (1 << offset)
else:
tmp = (tmp << 1)
else:
for x in xrange(-count):
if (tmp >> offset) & 1:
tmp = (tmp >> 1) | (1 << (offset+nbits-1))
else:
tmp = (tmp >> 1)
value = (value-(value&mask)) | (tmp & mask)
return value
def AddHotkey(hotkey, idcfunc): def AddHotkey(hotkey, idcfunc):